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| author | Damien George <damien.p.george@gmail.com> | 2017-10-04 21:46:38 +1100 |
|---|---|---|
| committer | Damien George <damien.p.george@gmail.com> | 2017-10-10 16:01:04 +1100 |
| commit | d8d4e4dfbe4ca76a1b0adf4f1938562a308c6d48 (patch) | |
| tree | f8a1128dabdcd955c791ed05637bbdf15947e971 /py/modmath.c | |
| parent | 25e140652b946e9a136a16a9831c0b18f1285702 (diff) | |
py/modmath: Convert log2 macro into a function.
So that a pointer to it can be passed as a pointer to math_generic_1. This
patch also makes the function work for single and double precision floating
point.
Diffstat (limited to 'py/modmath.c')
| -rw-r--r-- | py/modmath.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/py/modmath.c b/py/modmath.c index 6c248844d..7eda7594d 100644 --- a/py/modmath.c +++ b/py/modmath.c @@ -85,8 +85,12 @@ STATIC mp_obj_t math_generic_2(mp_obj_t x_obj, mp_obj_t y_obj, mp_float_t (*f)(m STATIC MP_DEFINE_CONST_FUN_OBJ_2(mp_math_## py_name ## _obj, mp_math_ ## py_name); #if MP_NEED_LOG2 +#undef log2 +#undef log2f // 1.442695040888963407354163704 is 1/_M_LN2 -#define log2(x) (log(x) * 1.442695040888963407354163704) +mp_float_t MICROPY_FLOAT_C_FUN(log2)(mp_float_t x) { + return MICROPY_FLOAT_C_FUN(log)(x) * MICROPY_FLOAT_CONST(1.442695040888963407354163704); +} #endif // sqrt(x): returns the square root of x |